Transport proteins have which primary role, with hemoglobin as an example?

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Multiple Choice

Transport proteins have which primary role, with hemoglobin as an example?

Transport proteins move substances around the organism. Hemoglobin illustrates this by carrying oxygen from the lungs to tissues that need it for metabolism and aiding in returning carbon dioxide from tissues to the lungs to be exhaled. The binding and release of these gases are driven by changes in oxygen concentration and other factors, so oxygen is picked up where it’s plentiful and released where it’s needed most. This carrying role is distinct from catalyzing chemical reactions, regulating gene expression, or providing structural support, which are the responsibilities of enzymes, regulatory proteins, and structural proteins, respectively.

Transport proteins move substances around the organism. Hemoglobin illustrates this by carrying oxygen from the lungs to tissues that need it for metabolism and aiding in returning carbon dioxide from tissues to the lungs to be exhaled. The binding and release of these gases are driven by changes in oxygen concentration and other factors, so oxygen is picked up where it’s plentiful and released where it’s needed most. This carrying role is distinct from catalyzing chemical reactions, regulating gene expression, or providing structural support, which are the responsibilities of enzymes, regulatory proteins, and structural proteins, respectively.

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